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Tag: "evolutionary" at medical news

Genetic Mechanism Helps Explain Chronic Pain Disorders

... lead author. "These data have broad medical and evolutionary implications regarding the analysis of variants common in the human population," Nackley Neely said. "It is believed that variants leading to altered protein structure have the strongest impact on gene function. However, this study demonstrates that ...

A New Gene to Contribute in Insulin Metabolism

...rosophila and what functions they have there,' the evolutionary biologist Professor Michael Hoch reminisces. He and his team were in fact successful. They discovered a protein, which is very similar to the cytohesins in mammals. Even more interestingly, fruit flies in which the genetic blueprint for this gene is ...

Sea Urchin Genome Similar To Man And May Cure Diseases

...rchins are closer to human and vertebrates from an evolutionary perspective than other more widely studied animal models, such as fruit fly or worms. The purple sea urchin, in fact, has 7,000 genes in common with humans, including genes associated with Parkinson’s, Alzheimer’s and Huntington’s diseases and muscul...

Telomerase Expression Linked To Body Mass

... in humans. Rodents are close to each other on the evolutionary tree and so if there were a pattern to the telomerase expression, she should be able to spot it there. To her surprise, she found no correlation between telomerase and longevity. The great monkey wrench in that theory was the common gray squirrel, ...

Development of Influenza A Virus

It is important to comprehend the evolutionary dynamics of the influenza virus, which will enable...earch, employed genomic analysis to scrutinize the evolutionary characteristics of the H3N2 subtype of human influenza A virus. With the help of a sample group of...

'Origin Of Sex' Can Be Revealed By Sperm Proteome

...nts of sperm. This will not only shed light on the evolutionary origins of sperm, but may advance our understandin... work has great relevance to current debate on the evolutionary underpinnings of sperm characteristics, and may have application to mammalian sperm function. The Dr...

Strong Evidence Suggests Incidence Of Mating Of Ancestors With Neanderthals

...ful evolution of humans. Many other researchers in evolutionary biology have welcomed the findings of this current research which they support as it concurs with the long disputed speculation of other biologists who had previously suggested such a possibility could contribute to present day human genetic blue pri...

Breeding success by delving into the honey bee sex gene

A research team led by University of Michigan evolutionary biologist Jianzhi "George" Zhang, has uncovered evolutionary //facts about a gene called csd, which is a sex determiner in honey bees. These novel inputs can ind...

Facial Expressions are Inherited: Study

...the study suggested that facial expressions had an evolutionary basis. "Our next step is to find the exact genes that influence facial expression." This could have an impact on autism research, where facial expressions are central to the disorder, she added. Source-IANS...

Evolution of Plant Life Cycle

...ts. A research team led by University of Michigan evolutionary biologist Yin-Long Qiu has new findings that help ...," said Qiu, an assistant professor of ecology and evolutionary biology. "If you look at the so-called 'lower' plants such as algae, liverworts and mosses, they spe...

Link between Fish and Mammal Immune Systems Revealed by Killer B cells

An evolutionary link between the immune systems of fish and mammal... cover of the October issue, represents a sizeable evolutionary step for the mammalian immune system and offers a potential new strategy for developing much-needed ...

Environmental Toxin Causes Heritable Adult-Onset Diseases

...am a heritable trait also may alter our concept of evolutionary biology. Traditional evolutionary theory maintains that the environment is primarily a backdrop on which selection takes place, and th...

John Hopkins Develops An Online Tool To Help In Research Of Certain Rare Diseases

..., some researchers considered them 'vestigial', an evolutionary relic from our progenitors. But a small band of investigators, including Katsanis at Hopkins, have begun to assign function to cilia in numerous cell types in the human body and speculate that 'anything so highly conserved by evolution is likely crit...

Inhibitor That Blocks Host Receptors Found To be Effective In Treating Anthrax

...He said that instead of trying to constantly match evolutionary changes in bacteria and viruses blocking the host receptors was a better approach for treatment. The researchers said that the same approach could be used to design blocking agents to protect against other diseases including SARS, flu and AIDS. S...

How HIV "Exhausts" Killer T Cells

... Walker said that scientists know little about the evolutionary purpose of a pathway that would deactivate such an important component of the immune system in the face of a viral attack. “It may be that in the heat of a battle that it sees it’s not winning, the body makes an adjustment to try to co-exist,” he sai...

A Human Brain Gene Could Hold Clues On The Evolution Of Brain Capacity

...that the gene discovered has undergone a quickened evolutionary change in humans and are active during a vital sta...f the human genome that have undergone accelerated evolutionary changes. This computer-intensive bio informatics approach produced a list of the most rapidly evol...

Race May Influences Cancer Risk From HPV

...from which it evolved. Rob DeSalle, an expert in evolutionary genetics at the American Museum of Natural History... in New York states that its possible to trace the evolutionary history HPV as it maintains its evolutionary history, unlike HIV which mutates rapidly leading to lo...

Childhood Anxiety Reduced with Breast-feeding

... benefits we see. As this is something that is, in evolutionary terms, normal it is likely to be important in normal human development." ...

Men Find Fleshy Women More Attractive When Hungry

...n the normal weight range. Studies also suggested evolutionary preference of men for plumper women. Dr. Swami said that in evolutionary terms more weight means more resources. Evolutionary psychologists believe that this is a surviv...

NHGRI Aims To Sequence Primate Genomes

...im is to sequence the genome of primates along the evolutionary tree that will give some clue to human health and disease. Comparing the genomes of other species to humans is an exceptionally powerful tool to help researchers understand the working parts of the human genome in both health and illness. NHGRI's...

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